Nucleus 21-Channel Auditory Brainstem Implant in Patients with Previous Tumour Removal: El implante auditivo de tallo cerebral Nucleus de 21 canales en pacientes con reseccion tumoral previa

Autor: Hao Wu, Wolf Peter Sollmann, Paul Viala, Didier Bouccara, Olivier Sterkers, A Rey, Michael Kalamarides, EmmanuÉLe Ambert Dahan
Rok vydání: 2000
Předmět:
Zdroj: International Journal of Audiology. 39:247-252
ISSN: 1708-8186
1499-2027
Popis: Three patients with neurofibromatosis type 2 who had undergone previous cochlear nerve tumour removal were implanted with the Nucleus 21-channel auditory brainstem implant (ABI). The time intervals between tumour removal and implantation were 4, 5, and 7 years, respectively. Total bilateral deafness was confirmed before implantation. One patient was also blind after acute intracranial hypertension. The translabyrinthine approach was used in all cases. The choice of side for implantation depended on pre-operative magnetic resonance imaging study, the facial nerve function, the presence of recurrent and/or other lesions, and the patient's preference. Although the scarring of prior surgical procedure largely changed the anatomical structures in the cerebello-pontine angle, various landmarks could be found to locate the foramen of Luschka, where the ABI electrode was inserted into the lateral recess of the fourth ventricle. During surgery, the electrically evoked auditory brainstem responses were recorded to ...
Databáze: OpenAIRE